Configuring options for forward pass

In addition to the options covered in Configuring the inputs and Default options there are some options which are unique to running the code in forward or series mode.

To run a series of forward passes, any of the fit parameters can be turned into a list of values. This list will then be iterated over to produce a series of spectra relflecting the series of parameters. For example, if the electron temperature is turned into a list of values, then a series of spectra will be produced for each value of the electron temperature. Multiple parameters can be turned into lists at the same time, but they must all be the same length.

Other

• extraoptions

  • spectype the type of spectrum to be computed. This field is self determined from the data when fitting. For a forward pass somthing has to be specified but it deos not effect the spectrum. Options are temporal or imaging In this context they produce the same spectrum.

  • PhysParams the subfields define instrumental properties

    • widIRF the subfields define the instrumental response functions, when fitting data it is determined from the calibration files but when running in forward mode these must be supplied. The subfields are:

      • spect_std_ion the standard deviation of the gaussian ion instrumental response function in nanometers

      • spect_std_ele the standard deviation of the gaussian electron instrumental response function in nanometers